Home / 211,603.76-292,013.22-120,961.72

Finding the Fourth Proportional to 211,603.76, 292,013.22 and 120,961.72

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Solution

The fourth proportional to 211,603.76, 292,013.22 and 120,961.72 is: 166,927.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,603.76 : 292,013.22 = 120,961.72 : x
  2. Step 2: Convert to fraction form
    211,603.76/292,013.22 = 120,961.72/x
  3. Step 3: Cross multiply
    211,603.76x = 292,013.22 × 120,961.72
  4. Step 4: Simplify right side
    211,603.76x = 35,322,421,353.94
  5. Step 5: Solve for x
    x = 35,322,421,353.94/211,603.76
  6. Step 6: Final answer
    x = 166,927.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.